1  start   size  index  contents
2      0      1         PMBR
3      1      1         Pri GPT header
4      2     32         Pri GPT table
5     34   1024      1  GPT part - EFI System
6   1058  19390      2  GPT part - NetBSD FFSv1/FFSv2
7  20448     32         Sec GPT table
8  20480      1         Sec GPT header
9